Corer.



Patented Apr. 6, 1909.

a. /A b A? 4 x m A w a fiwfmm m. m 3.1! m

P. C. ROBERTS.

GORER.

APPLIGATIQN FILED JAN. 13, 1908.

(Z. wax 52W UNITED STATES TENT OFFICE.

FERDINAND C. ROBERTS, OF DETROIT, MICHIGAN.

CORER.

Specification of Letters Patent.

Patented April 6, 1909.

Application filed January 18, 1908. Serial No. 410,527.

To all whom it may concern:

Be it known that I, FERDINAND C. ROB- za'rs, a citizen of the UnitedStates of America, residing at Detroit, in the county of 'Wayne andState of ltfichigan, have invented certain new and ,useful Improvementsin Corers, of which the following is a specification, reference beingbad therein to the accompanyin drawings.

renewal .of the main cutting edge.

The invention consists in the matters hereinafter set forth, and moreparticularly pointed out in the appended claim In the drawings, Figure 1is a view in perspective of a corer embodying features of the invention.Fig. 2 is a view inlongi tudinal section of the corer. Fig; 3 is a viewin detail, greatly enlarged, showing cut-ting burs on the outer surfaceof the corer body, and the method of renewing the cutting edge.

Referring to the drawings, the body of. the corer is a slightly taperedtube 1 of thin sheet. metal which is perforated for a portion of itslength from its smaller end, the perforations 2 being symmetricallydisposed in rings so as to present successive zones of weakened metalbetween bands of imperforate metal. The outer smaller end has a serratedcutting margin or lip 3 formed by severing the tube through a ring ofthe apertures which may be easily ac-' complished as shown in Fig. 3, bymaking a longitudinal cut from this end into an adjacent aperturethrough the outer imperforate band, and then tearing off this band,

the metal readily breaking along the row of holes. The burs 4 formed inpunching or piercing the plate or blank from which the tube is rolled,are on the outside of the tube..

An elongated slot. 5 in the shank of the corer beyond the perforatedportion with a tongue 6 obliquely secured across the tube allows thecontents of the corer to be pushed out. A handle 7 of any convenientform and material completes the implement.

Inoperatio'n, the corer is thrust into the fruit with a rotary motion,the serrated lip cutting out a clean cylinder which passes back readilythrough the expanding bore of the tube. The outer burs cut away thesurrounding maierial, the shreds entering the tube with the core. andthus room is made for the body of the corer which does not. therefore,split or disrupt the fruit. W hen the cutting lip is so worn as to beineffective, the outer imperforate band may be cut through and torn off,thereby renewing the li IVhat I claim as my invention is A fruitandvegetable corer comprising a sheet metal tube having an imperforate bodyprovided with a longitudinal discharge slot and an obliquely disposedtongue oppositethe slot closing the tube, a handle on one end of thebody, and a tapered portionhaving a series of zones weakened byperforations whose margins form outwardly projecting burs, thesmalleropen end of the tube having a serrated cut-ting edge formed by severingthe tube wall along the medial line of any one of the weakenedperforated zones.

In testimon whereof I affix my signature in presence 0 two witnesses.

FERDINAND C. ROBERTS. Witnesses C. R. STIOKNEY, Orro -F. BARTHEL.

